/*
 * The MIT License 
 *
 * Copyright (c) 2011 pf-miles
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
 * THE SOFTWARE.
 */
package action.expr.ast;

import java.util.ArrayList;
import java.util.List;

import action.expr.ActionVisitor;
import action.expr.VisitableAction;

/**
 * multiple assignments
 * 
 * @author pf-miles 2011-6-21 下午01:58:59
 * 
 */
public class Assignments implements VisitableAction {
    private List<Assignment> as = new ArrayList<Assignment>();

    public void accept(ActionVisitor visitor, Object... params) {
        visitor.visitAssignments(this, params);
    }

    public String toString() {
        StringBuilder sb = new StringBuilder();
        for (Assignment a : as) {
            sb.append(a.toString());
            sb.append("\n");
        }
        return sb.toString();
    }

    public List<Assignment> getAs() {
        return as;
    }

    public void setAs(List<Assignment> as) {
        this.as = as;
    }

    @Override
    public int hashCode() {
        final int prime = 31;
        int result = 1;
        result = prime * result + ((as == null) ? 0 : as.hashCode());
        return result;
    }

    @Override
    public boolean equals(Object obj) {
        if (this == obj)
            return true;
        if (obj == null)
            return false;
        if (getClass() != obj.getClass())
            return false;
        Assignments other = (Assignments) obj;
        if (as == null) {
            if (other.as != null)
                return false;
        } else if (!as.equals(other.as))
            return false;
        return true;
    }
}
